HARDTOP: The hardtop carries the mainsheet track, which is subject to high loading – in this case, approximately 10,000 lbs. Stainless steel tubular supports are bolted to the deck and bimini to prevent the force of the mainsail from pulling the bimini off. 

The traveller track is mounted on a carbon fiber beam that’s laminated onto the hardtop (see cross section illustration below). This carbon fiber structure prevents the beam from bending.

CROSSBEAM: The same engineering principles used in suspension bridge construction apply to the crossbeam bridle. The vertical forestay loading and to a lesser extent the trampoline and anchoring loadings are resisted by the beam and bridle system.

Tenstion: The stainless steel bridle wire is in tension counteracting the tendency of the beam to bend upward due to the forestay load. Compression: The A-frame is in compression between the stainless steel wire and the forestay tangs. The beam is also in compression, resisting the pull of the bridle wire. The walkway molding resists horizontal bending of the beam due to rig and tramp loads.

The crossbeam is made of aluminum and anodized for superior corrosion resistance. The crossbeam is connected to the deck and hull using six bolts and FRP reinforcements.